ASoC: rt5645: Add codec driver

/*

 * linux/sound/rt5645.h -- Platform data for RT5645

 *

 * Copyright 2013 Realtek Microelectronics

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __LINUX_SND_RT5645_H

#define __LINUX_SND_RT5645_H

struct rt5645_platform_data {

	/* IN2 can optionally be differential */

	bool in2_diff;

	bool dmic_en;

	unsigned int dmic1_data_pin;

	/* 0 = IN2N; 1 = GPIO5; 2 = GPIO11 */

	unsigned int dmic2_data_pin;

	/* 0 = IN2P; 1 = GPIO6; 2 = GPIO10; 3 = GPIO12 */

};

#endif

	select SND_SOC_PCM512x_SPI if SPI_MASTER

	select SND_SOC_RT5631 if I2C

	select SND_SOC_RT5640 if I2C

	select SND_SOC_RT5645 if I2C

	select SND_SOC_RT5651 if I2C

	select SND_SOC_SGTL5000 if I2C

	select SND_SOC_SI476X if MFD_SI476X_CORE

config SND_SOC_RT5640

	tristate

config SND_SOC_RT5645

        tristate

config SND_SOC_RT5651

	tristate

snd-soc-pcm512x-spi-objs := pcm512x-spi.o

snd-soc-rt5631-objs := rt5631.o

snd-soc-rt5640-objs := rt5640.o

snd-soc-rt5645-objs := rt5645.o

snd-soc-rt5651-objs := rt5651.o

snd-soc-sgtl5000-objs := sgtl5000.o

snd-soc-alc5623-objs := alc5623.o

obj-$(CONFIG_SND_SOC_PCM512x_SPI)	+= snd-soc-pcm512x-spi.o

obj-$(CONFIG_SND_SOC_RT5631)	+= snd-soc-rt5631.o

obj-$(CONFIG_SND_SOC_RT5640)	+= snd-soc-rt5640.o

obj-$(CONFIG_SND_SOC_RT5645)	+= snd-soc-rt5645.o

obj-$(CONFIG_SND_SOC_RT5651)	+= snd-soc-rt5651.o

obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o

obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o